D e 7200 C e n T r i f u G e D e 7200 vf D variable frequency D rive c en T rifu G e DE7200 VFD Centrifuge The DE7200 VFD centrifuge offers the ultimate flexibility in system control permitting it to handle a wide range of feed slurries New technology has been combined with durability and reliability in a product that is easy to operate and fully adjustable The result is a rugged yet technically advanced centrifuge designed for any application in virtually every environment Feed rates up to 500 GPM are achieved through innovative bowl and conveyor sections redesigned discharge ports and a rugged drive system The drive system consists of two explosionproof inverter duty motors A 150 HP motor drives the bowl and a 60 HP operates the conveyor Automatic load sensing and feed pump control enable automated performance optimization The bowl assembly can be operated up to 3000 RPM and the conveyor is capable of differential speeds from 1 to 90 RPM accommodating low levels of agitation and rapid solids removal The operational methodology of the VFD requires the PLC to have complete control over the feed pump through a third AC drive This enables feed pump control to be automatic or manual Advantages over a traditional belt press technology Extremely low footprint requirements Does not require indoor installation No additional chemicals are required prior to feeding the unit No operators are required Easier operation fully automated Maintains performance even with feed fluctuations Minimal maintenance requirements fewer moving parts Less down time and low cost per ton 7